McNew bought Morrissey presents, paid her bills and even took care of court fees from previous legal woes. Morrissey referred to him as her "sugar daddy." When McNew tried to end the relationship, Morrissey killed him, prosecutors said.

Lawyers also said Morrissey staged a burglary after shooting McNew in the face. She did not call for help while he died, and instead buried McNew's cellphone and laptop in her current boyfriend's backyard, according to investigators.

Morrissey also messaged McNew on Facebook after he died to make it look like she didn't know what had happened, police said.

Her new boyfriend allegedly urinated on Morrissey’s hand to “eliminate any gunshot residue," according to court testimony. He has not been charged with a crime.

Morrissey, 33, was charged with criminal homicide and burglary in the Aug. 6 killing of McNew, a former executive for Abbvie, a pharmaceutical company best known for developing the immunosuppressive drug Humira.

She was also charged with tampering or fabricating evidence and possessing an instrument of crime, according to court documents.

Phone records showed that Morrissey and McNew argued over text message on the evening of Aug. 6 after Morrissey threatened to tell the FBI about Morrissey’s boyfriend.

McNew texted Morrissey that he was boxing up her belongings and putting them into storage for her to pick up. He also texted that she was no longer welcome in his home and that he would “defend” himself if she came over, court records showed.